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Electromagnetic Field Theory

Electromagnetic Field Theory
In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is

 Infinity.
 Zero.
 4.32.
  2.16.

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Electromagnetic Field Theory
Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will

 remain in stable equilibrium.
 be in unstable equilibrium.
 will move out of the field of influence of two charges.
 not be equilibrium.

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Electromagnetic Field Theory
The main disadvantage of the two-hole directional coupler is

Poor directivity
Low directional coupling
High standing wave ratio
Narrow bandwidth

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Electromagnetic Field Theory
When a single turn coil rotates in a uniform magnetic field at a uniform speed, the induced emf will be

 alternating.
 none of these.
 pulsating.
 steady.

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Electromagnetic Field Theory
The magnitude of the induced emf in a conductor depends upon on the

 flux density of the magnetic field.
 amount of flux linkage.
 rate of change of flux linkage.
 amount of flux cut.

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Electromagnetic Field Theory
A dipole having a moment p – 3ux - 5uy + 10uz ncm is located at p(1,2,-4) in free space. The V as Q(2,3,4) is

 1.26 V.
 2.52 V.
 2.62 V.
 1.31 V.

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MORE MCQ ON Electromagnetic Field Theory

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